The sensitivity of future gravitational wave interferometers is expected to be limited through-out the detection band by quantum vacuum fluctuations, which can be reduced by quantum non-demolition methods such as squeezed vacuum injection. However, optical losses in the readout chainseverely limit the effectiveness of such schemes. We propose an optomechanical device to be installedat the output of the detector that mitigates the effect of readout loss, thus allowing the detector tobetter exploit quantum noise evasion schemes.
@article{arxiv.1909.02264,
title = {A phase-sensitive optomechanical amplifier for quantum noise reduction in laser interferometers},
author = {Yuntao Bai and Gautam Venugopalan and Kevin Kuns and Christopher Wipf and Aaron Markowitz and Andrew R Wade and Yanbei Chen and Rana X Adhikari},
journal= {arXiv preprint arXiv:1909.02264},
year = {2020}
}